Palynological study of the genus Macroptilium (Benth.) Urb. (Leguminosae) in Mexico and Central America
The pollen morphology of eight Macroptilium species occurring in Mexico and Central America is described by means of light and scanning microscopy. In this region, members of the genus have pollen grains 3-colporate, medium-sized, with polar shapes from prolate-spheroidal, suboblate to oblate-sphero...
| Main Authors: | , , |
|---|---|
| Format: | Online |
| Jezik: | spa |
| Izdano: |
Instituto de Ecología, A.C.
2010
|
| Online dostop: | https://abm.ojs.inecol.mx/index.php/abm/article/view/291 |
| _version_ | 1799771121329897472 |
|---|---|
| author | Torres-Colín, Leticia Fuentes-Soriano, Sara Delgado-Salinas, Alfonso |
| author_facet | Torres-Colín, Leticia Fuentes-Soriano, Sara Delgado-Salinas, Alfonso |
| author_sort | Torres-Colín, Leticia |
| collection | ABM |
| description | The pollen morphology of eight Macroptilium species occurring in Mexico and Central America is described by means of light and scanning microscopy. In this region, members of the genus have pollen grains 3-colporate, medium-sized, with polar shapes from prolate-spheroidal, suboblate to oblate-spheroidal. Differences in ectoaperture (length, apex shape and membrane), ornamentation, margo, and the outline in polar side identify two pollen types: Type I. Pollen with small colpi (brevicolpate), margo thickened, apex of the ectoaperture round, membrane granular, polar outline convex angular, exine tectate or semitectate, apocolpium punctate or rugulate, and mesocolpium microreticulate or rugulate. Species of section Microcochle, including M. gibbosifolium, M. pedatum, and M. supinum are characterized by this pollen type. Type II. Pollen with long colpi (longicolpate) margo non-thickened, apex of the ectoaperture acute, membrane granular, pollen outline circular to semi-angular, exine tectate or semitectate, apocolpium punctate to foveolate, and mesocolpium microreticulate to foveolate. Species of section Macroptilium comprising, M. atropurpureum, M. erythroloma, M. gracile, M. lathyroides, and M. longipedunculatum are distinguished by this pollen type. Palynological descriptions of five species of Macroptilium are provided for the first time. |
| format | Online |
| id | oai:oai.abm.ojs.inecol.mx:article-291 |
| institution | Acta Botanica Mexicana |
| language | spa |
| publishDate | 2010 |
| publisher | Instituto de Ecología, A.C. |
| record_format | ojs |
| spelling | oai:oai.abm.ojs.inecol.mx:article-2912022-12-23T05:32:52Z Palynological study of the genus Macroptilium (Benth.) Urb. (Leguminosae) in Mexico and Central America Estudio palinológico del género Macroptilium (Benth.) Urb. (Leguminosae) en México y Centroamérica Torres-Colín, Leticia Fuentes-Soriano, Sara Delgado-Salinas, Alfonso Central America Leguminosae Macroptilium Mexico pollen Centroamérica Leguminosae Macroptilium México polen The pollen morphology of eight Macroptilium species occurring in Mexico and Central America is described by means of light and scanning microscopy. In this region, members of the genus have pollen grains 3-colporate, medium-sized, with polar shapes from prolate-spheroidal, suboblate to oblate-spheroidal. Differences in ectoaperture (length, apex shape and membrane), ornamentation, margo, and the outline in polar side identify two pollen types: Type I. Pollen with small colpi (brevicolpate), margo thickened, apex of the ectoaperture round, membrane granular, polar outline convex angular, exine tectate or semitectate, apocolpium punctate or rugulate, and mesocolpium microreticulate or rugulate. Species of section Microcochle, including M. gibbosifolium, M. pedatum, and M. supinum are characterized by this pollen type. Type II. Pollen with long colpi (longicolpate) margo non-thickened, apex of the ectoaperture acute, membrane granular, pollen outline circular to semi-angular, exine tectate or semitectate, apocolpium punctate to foveolate, and mesocolpium microreticulate to foveolate. Species of section Macroptilium comprising, M. atropurpureum, M. erythroloma, M. gracile, M. lathyroides, and M. longipedunculatum are distinguished by this pollen type. Palynological descriptions of five species of Macroptilium are provided for the first time. Se describe la morfología del polen de ocho especies del género Macroptilium con distribución en México y Centroamérica, a partir de granos acetolizados y observados bajo microscopio de luz y microscopio electrónico de barrido. En esta región geográfica los miembros del género tienen granos de polen tricolporados, prolado-esferoidales, suboblados a rara vez oblado-esferoidales, de tamaño generalmente mediano. De acuerdo con las diferencias en las ectoaberturas (longitud, forma del ápice y membrana), ornamentación de la exina, engrosamiento del margo y contorno en vista polar se distinguen dos tipos polínicos: Tipo I. Polen con colpos cortos (brevicolpos), margo engrosado, ápice de la ectoabertura redondeado, membrana granular, contorno angular convexo, exina tectada o semitectada, punctada a rugulada en el apocolpio y microrreticulada a rugulada en el mesocolpio; característico de la sección Microcochle, representada por M. gibbosifolium, M. pedatum y M. supinum. Tipo II. Polen con colpos largos (longicolpos), margo no engrosado, ápice de la ectoabertura agudo, membrana granular, contorno circular a semiangular, exina tectada a semitectada, psilada, punctada, foveolada a microrreticulada en el apocolpio y microrreticulada a foveolada en el mesocolpio; este tipo distingue a las especies de la sección Macroptilium, incluyendo a M. atropurpureum, M. erythroloma, M. gracile, M. lathyroides y M. longipedunculatum. Por primera vez se proveen descripciones palinológicas para cinco especies del género. Instituto de Ecología, A.C. 2010-04-01 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion artículo evaluado por pares application/pdf text/html https://abm.ojs.inecol.mx/index.php/abm/article/view/291 10.21829/abm91.2010.291 Acta Botanica Mexicana; No. 91 (2010); 51-69 Acta Botanica Mexicana; Núm. 91 (2010); 51-69 2448-7589 0187-7151 spa https://abm.ojs.inecol.mx/index.php/abm/article/view/291/444 https://abm.ojs.inecol.mx/index.php/abm/article/view/291/445 Derechos de autor 2015 Acta Botanica Mexicana |
| spellingShingle | Torres-Colín, Leticia Fuentes-Soriano, Sara Delgado-Salinas, Alfonso Palynological study of the genus Macroptilium (Benth.) Urb. (Leguminosae) in Mexico and Central America |
| title | Palynological study of the genus Macroptilium (Benth.) Urb. (Leguminosae) in Mexico and Central America |
| title_full | Palynological study of the genus Macroptilium (Benth.) Urb. (Leguminosae) in Mexico and Central America |
| title_fullStr | Palynological study of the genus Macroptilium (Benth.) Urb. (Leguminosae) in Mexico and Central America |
| title_full_unstemmed | Palynological study of the genus Macroptilium (Benth.) Urb. (Leguminosae) in Mexico and Central America |
| title_short | Palynological study of the genus Macroptilium (Benth.) Urb. (Leguminosae) in Mexico and Central America |
| title_sort | palynological study of the genus macroptilium (benth.) urb. (leguminosae) in mexico and central america |
| url | https://abm.ojs.inecol.mx/index.php/abm/article/view/291 |
| work_keys_str_mv | AT torrescolinleticia palynologicalstudyofthegenusmacroptiliumbenthurbleguminosaeinmexicoandcentralamerica AT fuentessorianosara palynologicalstudyofthegenusmacroptiliumbenthurbleguminosaeinmexicoandcentralamerica AT delgadosalinasalfonso palynologicalstudyofthegenusmacroptiliumbenthurbleguminosaeinmexicoandcentralamerica AT torrescolinleticia estudiopalinologicodelgeneromacroptiliumbenthurbleguminosaeenmexicoycentroamerica AT fuentessorianosara estudiopalinologicodelgeneromacroptiliumbenthurbleguminosaeenmexicoycentroamerica AT delgadosalinasalfonso estudiopalinologicodelgeneromacroptiliumbenthurbleguminosaeenmexicoycentroamerica |
